Native Copper Slab Selenite BLC115 Blue Chalcedony Tongue displays

BLC115 Blue Chalcedony Tongue displays translucent light blue coloring

This specimen pair features red

and is from border of Mozambique and the Kingdom of Eswatini

This specimen slab features green

where to look for them

Native Copper Slab Selenite BLC115 Blue Chalcedony Tongue displaysNative Copper Slab Native Michigan copper slabs feature copper rich ore with quartz, basalt, epidote, and calcite coated with a thin coat of epoxy to prevent oxidation. The chemical symbol for copper is Cu. Michigan's Keweenaw Peninsula is considered the most important locality in the world for pure native copper Mining began in 1845 and continued through 1982, and over 7 million tons of refined copper were recovered from the mines. At the turn of the